[StreetRacer]

Thank you for replying.
I did clear a code after replacing valves.
I checked for the spider nests. I disconnect and blow the hose #9.
I will replace Fuel Tank Pressure Sensor #10 on diagram and will see what happen.
Thank you guys again for all your help. I will post here after replacing FTP sensor.

 

[StreetRacer]

I replaced fuel tank pressure sensor today. Cleared the code. Fingers crossed.
Also, as you can see on the picture above, there is three hoses that goes into the canister.
Pipe on the middle getting vapor from fuel tank.
Pipe on left going to purge valve and then to the engine.
Pipe on right going to atmosphere.
Please correct me if I wrong.
So when I blow in the middle pipe in the canister and close the right pipe with my finger, air coming out from left pipe easy. But, when I close the left pipe, and blow air in the middle pipe, I have to blow hard for air to come out from the right pipe.
Is this normal and it should be like this, or I have a blocked canister?

 

[StreetRacer]

Check engine light just shows up again. P2422

 

[StreetRacer]

Today I disconnected Vent valve and start the car. I have battery voltage on that socket. Then I connect another Vent valve, that I got from junk yard, to that socket and valve didn't move or made a clicking noise. But if I connect that same valve straight to a battery it works (moving and clicking). I tried this for 3 valves that I got from junk yard - same thing happened. I am so confused now. How is that possible? Same voltage and it works from the battery, but not from the socket under car?

 

[StreetRacer]

Traylaw, so in other words, everything works as it should? Is this totally normal for valve to not operate while I connect it to the socket with voltage?

 

[StreetRacer]

Canister change fixed the problem.

Thanks to everyone for your input. It was very helpful to understand how this system works.

According to the blowing air to the different ports, I can confirm that it should be no resistance blowing air to the tank vent with the purge port closed.
It was very noticeable when I did this test to my old and new canister.

 

[StreetRacer]

I would try to blow in the canister ports first. Doesn't cost you anything. Make sure you remove the vent valve while doing this.
Also you can check if valve is moving when connected to the battery.
Blow the air to the ventilation pipe also to see if it has any blockage